/* Flexbox 混入 */
.flex {
  display: flex;
}

.flexColumn {
  display: flex;
  flex-direction: column;
}

.flexCenter {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flexBetween {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flexAround {
  display: flex;
  align-items: center;
  justify-content: space-around;
}

.flexWrap {
  display: flex;
  flex-wrap: wrap;
}

.flexGrow {
  flex-grow: 1;
}

.flexShrink {
  flex-shrink: 0;
} 